Mode 1 and mode 2 designs for 94-GHz microstrip circulators

Details are given of two theoretical design for a 94-GHz ferrite circulator in a quartz substrate, based on circulation modes 1 and 2, and their predicted performances are described. The 15-dB isolation bandwidths are 8 GHz and 3 GHz, respectively. The narrower bandwidth design has a larger ferrite...

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Bibliographic Details
Published in:IEEE microwave and guided wave letters 1993-09, Vol.3 (9), p.310-312
Main Authors: Borjak, A.M., Davis, L.E.
Format: Article
Language:English
Subjects:
Applied sciences
Bandwidth
Circuit properties
Circulators
Dielectric materials
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Ferrites
Frequency
Impedance
Manufacturing
Microstrip
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Production
Saturation magnetization
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Summary:Details are given of two theoretical design for a 94-GHz ferrite circulator in a quartz substrate, based on circulation modes 1 and 2, and their predicted performances are described. The 15-dB isolation bandwidths are 8 GHz and 3 GHz, respectively. The narrower bandwidth design has a larger ferrite radius, and this may provide some mechanical advantages in manufacturing. Other comparisons are made.< >
ISSN:1051-8207
1558-2329
DOI:10.1109/75.244854